CVE-2021-3393 Information

Description

An information leak was discovered in postgresql in versions before 13.2 before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which under some circumstances might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1924005 https://security.netapp.com/advisory/ntap-20210507-0006/ https://security.gentoo.org/glsa/202105-32

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

4.3